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package org.dusin.teachassist.servlet.student;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.dusin.teachassistdbservice.serviceimpl.GeneralService;
import org.dusin.teachassistdbservice.util.TheUtil;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

/**
 *
 * @author dusin
 */
@WebServlet(name = "CancelReport", urlPatterns = {"/servlet/student/CancelReport"})
public class CancelReport extends HttpServlet {

    private GeneralService instance;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/json;charset=UTF-8");
        PrintWriter out = response.getWriter();
        boolean success = false;
        String msg = null;
        HttpSession session = request.getSession();
        String no = request.getParameter("no");
        String jobId = request.getParameter("id");
        String filename = request.getParameter("filename");
        String type = request.getParameter("type");  //2 作业
        if (type == null) {
            type = "1";
        }
        String teacherNo = (String) session.getAttribute("teacherNo");

        String semester = TheUtil.getCurrentSemester();
        String courseName = (String) session.getAttribute("courseName");
        String studentNo = (String) session.getAttribute("studentNo");

        ServletContext sc = request.getServletContext();
        String dataDirectoryStr = sc.getInitParameter("DataDirectory");
        if (dataDirectoryStr == null) {
            dataDirectoryStr = "e:/ta";
        }
        String reportfilename = dataDirectoryStr + "/" + teacherNo + "/" + semester + "/" + courseName + "/实验/" + no + "/" + filename;
        if ("2".equals(type)) {
            reportfilename = dataDirectoryStr + "/" + teacherNo + "/" + semester + "/" + courseName + "/作业/" + no + "/" + filename;
        }
        ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
        instance = (GeneralService) context.getBean("generalService");
        try {
            File reportFile = new File(reportfilename);
            System.out.println(reportFile.getAbsolutePath());
            if (reportFile.exists()) {
                boolean r = reportFile.delete();
                System.out.println(r);
            }
            if("1".equals(type)){
                instance.trCancelReport(Integer.parseInt(jobId), studentNo);
            }else{
                instance.trCancelHomework(Integer.parseInt(jobId), studentNo);
            }
            
            success = true;
            msg = "删除成功";
        } catch (Exception e) {
            success = false;
            msg = "删除失败";
            e.printStackTrace();
        } finally {
            out.printf(TheUtil.getJsonResult(success, msg));
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
